Ariston Basic 23 MFFI Ignition PCB - Thermowatt CB AT-FFI2 - Ref. 952332
Ignition PCB for Ariston Basic, Edy, and SC MFFI/MCSI boilers, manufactured by Thermowatt, model CB AT-FFI2. It controls the ignition safety times (nominal 7 s, maximum 10 s) and the 2 s delay, powered at 230 Vac - 50Hz. It is replaced when the boiler does not ignite or gets stuck during startup.
VAT included
Consult via WhatsAppAriston boilers compatible with reference 952332
PCB with reference 952332. Five confirmed compatibilities: Basic 23 MFFI and Edy 23 MFFI.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston Basic 23 MFFI | Basic 23 MFFI | Contrasted |
| Ariston Edy 23 MFFI | Edy 23 MFFI | Contrasted |
| Ariston New Edy 23 MFFI | Edy 23 MFFI | Contrasted |
| Ariston SC 23 MCSI | SC 23 MCSI | Contrasted |
| Ariston New SC 23 MCSI | SC 23 MCSI | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if the ref. 952332 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 952332. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the PCB 952332 resolves.
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to ignite but locks out after a few seconds.
Cause: The PCB controls the ignition safety times; if it does not detect the correct signal in time, it cuts off the attempt and locks the boiler.
Check that the ignition electrode produces a visible spark and is clean before declaring the PCB faulty.
- 02
The burner does not receive the ignition command.
Cause: The PCB sends the signal to the electrode and the gas valve at the precise moment of startup.
Check that power is reaching the PCB and that no thermostat or safety sensor is interrupting the circuit before replacing it.
- 03
The boiler repeatedly locks out every time it tries to start.
Cause: If the safety time is exceeded without confirming the flame, the PCB cuts the cycle for safety.
Check the gas supply and pressure before replacing the PCB: a lack of gas causes the same lockout.
- 04
There is no reaction from the PCB when the ignition command is given.
Cause: If the PCB does not receive or process its power supply correctly, it does not generate any ignition sequence.
Measure with a multimeter that 230V is reaching the PCB before replacing it.
Fault codes for Ariston that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| E | Flame detection fault (Total Check System). | Fault in the flame detection circuit integrated into the ignition PCB (A09 in diagrams; ignition relay U on the PCB). Check spark and wiring/electrodes and measure ionisation signal; if everything is correct, the ignition PCB itself is damaged and causes the E code. |
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for the Ariston PCB 952332
- Catalogue reference
- 952332
- Brand
- Ariston
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Nominal safety time
- Ts NOM = 7 s
- Maximum safety time
- Ts MAX = 10 s
- Delay time
- Tdelay = 2 s
- Supply voltage
- 230 Vac - 50Hz
- Marked
- CE
Frequently asked questions about the PCB 952332
Does this ignition PCB work for the Ariston Edy 23 MFFI in its NG version?
Which manufacturer makes the CB AT-FFI2 PCB of the Basic 23 MFFI?
What fault does replacing this PCB in an Ariston SC 23 MCSI resolve?
What voltage does the CB AT-FFI2 PCB operate at?
What safety times does this PCB control in the Basic 23 MFFI GPL?
Spare parts related to Ariston Edy 23 MFFI
